The uppersides are creamy white with dark tips to the forewings and the veins dusted with dark scales. The male usually has a single spot near the middle of each forewing and the female has two spots. As in other Pieris species, there is a black spot on the front edge of the hindwing. The undersides of the forewing is a white with yellowish tip, while the underside of the hindwing is yellowish. The veins are lined with dark scales, especially on the hindwings where, mixed with the yellow ground colour, they appear green and give the insect is English name. Flight March to October in more broods. The larval foodplants are a wide range of wild crucifers like Garlic Mustard, Cuckooflower or Watercress.

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